<template>
  <div>
    <One />
    <Two :a="a" />
    <button @click="a++">add-app</button>
  </div>
</template>
<script>
import One from './components/One.vue';
import Two from './components/Two.vue';
export default {
  name: 'App',
  components: {
    One,
    Two,
  },
  data() {
    return {
      a: 1,
    };
  },
};
</script>
<style></style>
